Cruze

DTC P268C-P268F

The control functions for the fuel injection system are integrated in the engine control module (ECM). During the manufacturing process, each injector flow rate is measured and recorded as injection quantity adjustment flow rate data. This data, together with the injector's cylinder position, is stored in the ECM. When the ignition is turned ON, the ECM monitors the fuel injection flow rate numbers to ensure they are present.

The ignition is ON.

The fuel injector injection quantity adjustment flow rate data is not programmed.

DTCs P268C, P268D, P268E and P268F are Type B DTCs.

DTCs P268C, P268D, P268E and P268F are Type B DTCs.

Verify that the ECM has the correct part number for the application.

1. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
2. Perform the Injector Flow Rate Programming.
3. Verify that the DTC does not reset.

⇒	If DTC is set, replace the K20 Engine Control Module.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for ECM replacement, setup, and programming